Rose::DB::Object::MakeMethods::Std creates methods related to Rose::DB::Object::Std-derived objects. It inherits from Rose::Object::MakeMethods. See the Rose::Object::MakeMethods documentation to learn about the interface. The method types provided by this module are described below.

All method types defined by this module are designed to work with objects that are subclasses of (or otherwise conform to the interface of) Rose::DB::Object. In particular, the object is expected to have a db method that returns a Rose::DB-derived object. See the Rose::DB::Object::Std documentation for more details.

Creates a method that will attempt to create and load a Rose::DB::Object::Std-derived object based on a primary key stored in an attribute of the current object.

If passed a single argument of undef, the hash_key used to store the object is set to undef. Otherwise, the argument is assumed to be an object of type class and is assigned to hash_key after having its primary key set to the corresponding value in the current object.

If called with no arguments and the hash_key used to store the object is defined, the object is returned. Otherwise, the object is created and loaded.

The load may fail for several reasons. The load will not even be attempted if the primary key attribute in the current object is undefined. Instead, undef will be returned. If the call to the newly created object's load method returns false, that false value is returned.